Function _bitmap_log_lovitem

src/backend/access/bitmap/bitmaputil.c:985–1024

* _bitmap_log_lovitem() -- log adding a new lov item to a lov page. */

 * _bitmap_log_lovitem() -- log adding a new lov item to a lov page.
 */
void
_bitmap_log_lovitem(Relation rel, ForkNumber fork, Buffer lovBuffer, OffsetNumber offset,
					BMLOVItem lovItem, Buffer metabuf, bool is_new_lov_blkno)
{
	Page lovPage = BufferGetPage(lovBuffer);

	xl_bm_lovitem	xlLovItem;
	XLogRecPtr		recptr;

	Assert(BufferGetBlockNumber(lovBuffer) > 0);

	xlLovItem.bm_node = rel->rd_node;
	xlLovItem.bm_fork = fork;
	xlLovItem.bm_lov_blkno = BufferGetBlockNumber(lovBuffer);
	xlLovItem.bm_lov_offset = offset;
	memcpy(&(xlLovItem.bm_lovItem), lovItem, sizeof(BMLOVItemData));
	xlLovItem.bm_is_new_lov_blkno = is_new_lov_blkno;

	XLogBeginInsert();
	XLogRegisterData((char*)&xlLovItem, sizeof(xl_bm_lovitem));
	XLogRegisterBuffer(0, lovBuffer, REGBUF_STANDARD);

	if (is_new_lov_blkno)
		XLogRegisterBuffer(1, metabuf, 0);

	recptr = XLogInsert(RM_BITMAP_ID, 
						XLOG_BITMAP_INSERT_LOVITEM);

	if (is_new_lov_blkno)
	{
		Page metapage = BufferGetPage(metabuf);

		PageSetLSN(metapage, recptr);
	}

	PageSetLSN(lovPage, recptr);

	elog(DEBUG1, "Insert a new lovItem at (blockno, offset): (%d,%d)",
		 BufferGetBlockNumber(lovBuffer), offset);
}

/*
 * _bitmap_log_bitmapwords() -- log new bitmap words to be inserted.